75W puolijohdelämmitin DIN-kiskolle

Condensation and low temperatures inside electrical enclosures can cause corrosion, short circuits, and premature component failure. This 75W solid state heater for DIN rail mounting provides reliable, maintenance-free heating to keep your control cabinets, switchgear, and electronic housings at a stable operating temperature. Its PTC heating element self-regulates, eliminating the need for external thermostats and preventing overheating. The integrated axial fan ensures even heat distribution, while the compact plastic housing fits standard 35 mm DIN rails. Ideal for outdoor installations, traffic systems, and industrial automation where dependable climate control is essential.

Who is it for

Electrical engineers, panel builders, and maintenance technicians who need a compact, energy-efficient heating solution for enclosures in cold or humid environments. It is particularly suited for applications requiring continuous operation without manual intervention, such as outdoor cabinets, telecommunication equipment, and control systems.

Main features

• Self-regulating PTC heating element – no external control required
• Integrated axial fan with ball bearing for long service life
• 20 m³/h airflow ensures uniform temperature distribution
• Compact design mounts directly onto 35 mm DIN rail
• UL 94V-0 flame-retardant plastic housing
• Wide operating temperature range from -45 to +70 °C
• IP20 protection for indoor use
• Low noise level below 45 dB(A)
• Approvals: VDE, UL, cUL

Specifications

• Heating power: 75 W
• Operating voltage: 230 V AC
• Current consumption: 0.3 A
• Heating element: PTC resistor, self-regulating
• Fan type: Axial fan, ball bearing
• Airflow: 20 m³/h (12 CFM)
• Connection: 2-pole terminal, max. 2.5 mm² (AWG 14)
• Housing material: Plastic, UL 94V-0
• Operating temperature: -45 to +70 °C (-49 to +158 °F)
• Storage temperature: -45 to +70 °C (-49 to +158 °F)
• Protection class: IP20
• Humidity: Max. 90% RH (non-condensing)
• Noise level: < 45 dB(A)
• Fan lifetime: 50,000 h at +25 °C (+77 °F)
• Mounting: 35 mm DIN rail

Tips

For optimal performance, install the heater at the bottom of the enclosure to promote natural convection. Ensure adequate clearance around the fan inlet and outlet to maintain airflow. In high-humidity environments, pair with a hygrostat or thermostat for additional control. Regularly inspect the fan and vents for dust accumulation to extend service life.